JavaScript getTime() Method

Definition and Usage

The getTime() method returns the number of milliseconds since midnight of January 1, 1970.

Syntax

dateObject.getTime()

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Tips and Notes

Note: This method is always used in conjunction with a Date object.

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Example

In this example we will get how many milliseconds since 1970/01/01 and print it:

<script type="text/javascript"> var d = new Date(); document.write(d.getTime() + " milliseconds since 1970/01/01"); </script>

The output of the code above will be:

1336832603425 milliseconds since 1970/01/01

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Example 2

 In the following example we will calculate the number of years since 1970/01/01:

<script type="text/javascript"> var minutes = 1000*60; var hours = minutes*60; var days = hours*24; var years = days*365; var d = new Date(); var t = d.getTime(); var y = t/years; document.write("It's been: " + y + " years since 1970/01/01!"); </script>

The output of the code above will be:

It's been: 42.39068377175292 years since 1970/01/01!